Impacts of cage culture of the common carp, Cyprinus carpio Linnaeus ۱۷۵۸, on water quality and phytoplankton communities in Golestan reservoir, north of Iran
- سال انتشار: 1403
- محل انتشار: مجله علوم زیستی خاورمیانه، دوره: 22، شماره: 2
- کد COI اختصاصی: JR_CJES-22-2_006
- زبان مقاله: انگلیسی
- تعداد مشاهده: 167
نویسندگان
Department of Fisheries, Gonbad Kavous University, Gonbad Kavous, Iran
Department of Fisheries, Gonbad Kavous University, Gonbad Kavous, Iran
Department of Fisheries, Gonbad Kavous University, Gonbad Kavous, Iran
Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, Iran
Department of Fisheries, Gonbad Kavous University, Gonbad Kavous, Iran
چکیده
Regarding to fish cage culture development in freshwater reservoirs, it is essential to evaluate its environmental impacts. The present study was aimed to evaluate the environmental impacts of common carp, Cyprinus carpio cage culture on water quality and phytoplankton communities of Golestan reservoir, north of Iran. Sampling was monthly conducted from six stations (۵, ۱۰۰, ۲۰۰, ۴۰۰, ۱۰۰۰ and ۲۰۰۰ m distance from cages) along this reservoir during April to September, ۲۰۱۶. The water quality parameters and phytoplankton population alterations were sampled at all stations. No significant differences were observed in the environmental variables (except for BOD) among the sampling stations. However, all these variables showed significant differences between the sampling periods. The highest abundances of identified phytoplankton were belonged to Cyanophyta, Bacillariophyta and Chlorophyta respectively in both seasons. Canonical correspondence analysis (CCA) diagrams presented differences in the temporal distribution of sampling units and phytoplankton abundances in both seasons. However, no significant spatial differences were observed. Based on results, we found no consistent environmental alteration caused by cage culture, hence it can be allowed in Golestan reservoir, Iran byclose monitoring its impacts.کلیدواژه ها
Cage culture, Environmental impact, phytoplankton, Freshwater reservoirاطلاعات بیشتر در مورد COI
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